齿杆梳形铣刀是用于加工油泵调速齿杆梳形齿条的刀具,刀具齿形精度要求高,见图1。从铣刀加工工艺过程可知,铲磨是决定该铣刀精度的关键。原采用单线砂轮磨削铣刀齿形如图2。第一圈齿磨完后,将砂轮架移动一个齿距,磨削第二圈齿,这样连续往复多次进行磨削,直到齿距和齿深都达到图纸要求。由于机床上齿轮、丝杠的传动误差、拖板的进给系统误差和磨头部分轴向窜动及径向跳动误差等都会直接影响齿距和齿深精度,虽然在加 Rack and pin comb cutter is used to process the pump racks rack comb teeth rack, tool tooth profile precision requirements, see Figure 1. We can see from the milling process, shovel milling is the key to determining the accuracy of the cutter. The original single-line grinding wheel grinding tooth profile shown in Figure 2. After the first lapped tooth is finished, the wheel frame is moved by a pitch, and the second lapped tooth is lapped, so that grinding is repeated for several times until the pitch and the tooth depth reach the requirements of the drawing. Due to the gear on the machine tool, screw drive error, carriage error and feed system grinding head axial movement and radial runout error will directly affect the pitch and tooth depth accuracy, although in Canada